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Technical standard

Domain-Based Message Authentication, Reporting, and Conformance (DMARC)

IETFMay 2026PDF

Follow how a domain owner publishes email authentication policy and how receiving systems assess alignment and report results.

Domain-Based Message Authentication, Reporting, and Conformance (DMARC) cover

Inside the resource

  • Requirements
  • DMARC Participation
  • DMARC Feedback
Publisher’s source